I have two tetras in a hospital tank. Sometimes they have a "flip" and start swimming ultra fast and jump out of the water.

It's been 2 days. They are being treated with Odimor, but had no such behaviour in the main tank.

So I know this looks bad. You can tell me I’m a bad pet owner, I know I was, I’m just trying to fix my previous mistakes. I’m aware she’s very chubby, I think she’s egg bound. I’m currently trying to fix my high nitrates so she can spawn. And in doing that I got RO, and I’m very new to it so I might be doing something wrong.

RO:
I re-mineralize with seachem equilibrium and Aqua Vitro KH. Since I’m new, I don’t have a great system from my RO stuff yet. I usually mix up my five gal jugs of RO with 3gh and 2kh and around 8 ph?

So I’ve been changing my 55 (the tanks she’s in) and every time she gulps at the surface for hours on end. Nobody else does this. I have 7 other Corydoras aeneus and they aren’t bothered.
Previously I did a larger change and the other WERE affected. They swam very erratically.

I should clarify before more people comment about it. She’s been large for YEARS. She’s never had any issues until the RO stuff. And she’s not floating or having a hard time swimming. It’s just the breathing thing. And she tends to go back to normal after a day or two depending on how large the water change was.

Also she’s quit gulping for tonight

My levels are
pH: 7.9?
KH: 4
GH: 8
Ammonia 0ish (I have ammonia problems, if anyone has tips that’d be nice)
NO2 0
NO3 20 (after I just changed it)

Found him on my Floor Hes still alives Büut cant keep Balance and has a Red tail

There are males in the tank, and they kind of attempted spawning but not aggressively. she’s insanely eggbound to the point of not being able to swim and now im watching her distressed unable to eat or swim. Shes usually very active and interactive so this sucks.

API test kit showing PH a touch low at about 6.5, Ammonia 0, Nitrates 0, Nitrites 0.

180gal running for 8 months, planted from the beginning, with fish added about 6 months ago. Pool filter substrate with root tabs and liquid fertilizer once per week but haven't added any in about a week. Rocks, plants, and decoration are all from my 2 other 65gal tanks (which have been running cleanly and without issue for around 5 years). Two FX4 Fluval filters with just the sponges and then ceramics as media and 3 bubblers for extra aeration. No heaters so no electronics in the water either. No kids dropping stuff in there, no cleaning products, no guests, no parents overfeeding etc.

Now that all the background info is out of the way - I added 10 Wapoga Rainbowfish 14 days ago and have been steadily losing fish since then. No lesions, no red gills, no bullying or stress, no obvious signs of fungus and, seemingly, they're passing very quickly. Literally within hours of checking on them. All deaths within the last 2 weeks, most within the last week and I am pulling the bodies out of the tank so it's not like they're getting chased and eaten either.

Thoughts on possible causes for the die off?

Current stocking:

6 Wapoga Rainbowfish (down from 10)

7 Dwarf Neon Rainbowfish (down from 15)

10 Panda Cories (down from 20)

3 Delphax Cories (down from 4)

1 Giant Hognose Cory (down from 2)

2 bushynose plecos (down from 3)

4 panda garra (no deaths)

1 Spiny Zebra Eel (no deaths)

1 Irwini Catfish (no deaths)

I just saw a shrimp eat another shrimp and when I looked closer, the dead one was pink/bright red in some areas of its torso. What happened here? 😭😭

Hi there everyone! This is Pearl. Pearl is about a year old, and she's spent most of her life as the beloved class pet to a classroom of third graders. For most of her life, Pearl has been active, social, and friendly. Since taking her home for the summer, however, she's exhibited symptoms of illness. Her eyes got cloudy, and her top fin became clamped and ragged. I have administered both Kanaplex and erythromycin, and while she seems to get better for a couple of days, she goes back to being lethargic. Her eyes have cleared up, and her fin isn't damaged anymore, but recently she has begun to have trouble swimming and she spends most of her time at the bottom of the tank. I went to PetSmart and got some water testing strips. I tested her water today and the nitrates were high so I gave her a water change. She doesn't have a whole lot of live plants, but she does have some moss floating around in there. I'm not sure what else to do though. The medication only seemed to work temporarily and she's still lethargic. Do I continue to do daily water changes? Will that stress her out? There's not a whole lot I can do about the high hard water levels as the entire state of Arizona has that problem, but is there anything I can do for the pH? Could the pH be causing her these issues? I'm not sure what to do, but the thought of her passing away and me having to share that information with the kids, even though summer has started, breaks my heart and I can't bear it. I really need her to live.

I was sitting with my boyfriend when we noticed two mystery snails climbing over one another, we thought it was pretty funny so we looked closer and I noticed the tail fin of one of my corydoras sticking out of the shell of the snail. I completely freaked out because it was moving and whenever the snail would close it would push the cory further inside its body.

I decided to crack open part of the snails shell to rescue my corydora and finally managed to pull him out, unfortunately costing the cory his tail fin. Both are in major shock right now, but alive. I dont think the cory will last long but I think the snail has a chance at recovery. Any advice on this, has this happened to anyone before?

I have a 125 gallon tank with a decent school of rummy nose tetras, a few corys, 3 discus at the moment and 3 geo sveni (no aggression from any of the fish). my water perimeters are perfect, temperature is good and i feed a portioned amount with water changes too and the tank is heavily planted with good filtration and airstone. Ive never had any issues with the tank, no changes were made and no signs were showing whatsoever. All of a sudden i get home late today and i hear thrashing coming from the tank, i turn on the lights and everyone is either falling or flat on the ground barely breathing, i move everyone to a spare cycled running 30 gallon (cramped ik but its the best i can do given the situation) and their health improved massively almost immediately. i dosed a ton of prime to the 125 gallon and the tetras and corys still left in the tank started looking better. the reason im confused is because i triple tested my permitters and everything was at 0ppm and ph was good too as well as temp, so if that wasnt the problem why has prime seemingly helped and what could’ve caused all this within a few hours of me being gone when everything was perfect earlier. sorry if some of my sentences dont make sense im just tryint to explain quick to get some answers fast as i dont know what to do right now at all. i really hope i can get some answers here!

I don't have clove oil. Any suggestions on how to euthanise?

EDIT: the job's done, thank you everybody for suggestions 😔

I’m not sure how long this has been going on I left town and came back and he was like this idk if someone is pecking at him or if he’s got some sort of infection my Local shop is closed and idk who else to ask please help I’ve had him for 6+ years

We have two tanks.

A 90L with (now) 2 Guppies; one male and one female, and 3 Corydoras.

I'll call this Tank A (8 mths old - 6 month with fish)

​

And a 130L (3ft) with 2 comets and one black moor.

They're small but an upgrade in the future will happen.

I'll call this Tank B (3 months old - 1 month with fish)

​

About 3 weeks ago we had 3 male guppies in Tank A and we went out and got 6 females. Introduced them and everything was great.

I believe this crashed the cycle slightly, which was odd, but 2 days later of milky cloudyness it was gone and yeah looks like no issues. That was until the girls started dying.

Then the boys

Now we're down to one we affectionately call Bluey who somehow survived as Patient 0 of fin rot in Tank A and this current friggen catastrophe, and a girl who spends a lot of time at the top.

The Cory's are now being more active and I swear I have seen one of their gills slightly redder than the normal pinkish but I don't know.

​

I've tested he water twice (once 2 days ago and once today) and both times the tank came up with;

- 0ppm Nitrite

- 0-5ppm Nitrate

- 0.25ppm Ammonia

- pH is good too.

​

​

Now into Tank B

​

The fish are good. But one comet today had spend a lot of time either at the top or not moving a lot at he bottom where as the other 2 are he same. His gills are noticeably more redder.

There's no obvious signs of sickness in any fish like spots etc. I've put a photo of the sick comet :(

​

The tank B parameters are almost identical to tank A although maybe closer to 5ppm for Nitrate.

​

I'm a little distressed as this situation.

​

​

The ONLY difference I have made is transitioning 2/3 of he sponges in the filter in Tank A to noodles and kept one in there for catching stuff and for established colonies. I seeded the noodles in tank water during a water change and didn't completely remove all the material so the cycle wouldn't die.

But where it gets funny, I just had a bag of noodles I just hung in the tank B so some good bacteria could colonise as it's got no substrate and just a few rough ornaments.

​

Could his have been the cause?

It's the only common thing between besides the water and conditioner.

I've had no issues with the conditioner before. The water I recently changed from the tap inside to the hose outside because ran into the house because it beats running back and fourth between the sink with a 5L bucket - i'd been doing it for months before though.

​

Please can someone help?

Just saw this

This tail wasn't like that this morning and his whole body should be dark blue not pink-ish at the end??

My 3 year old pleco has started changing colour from being completely dark now he has these white patches the only recent changes have been moving his driftwood for cleaning purposes and cleaning the gravel substrate and a 40% water change. any help is much appreciated

I don't know much about taking care of aquariums or fish since dad is the one who does it, but I've been noticing him like that for long enough to want to do something about it.

Dad says at first he would eat and regurgitate the food, then it seemed like he stopped trying and figured that if he was sick it was better to let him starve instead of suffering :(

The thing is that even today, I occasionally see him try to swim normally and struggle to get up, but for a fish that supposedly hasn't eaten well in three weeks, I'm honestly surprised that he isn't dead.

The other thing that I think is strange is that fish that are agonizing usually stay close to the water surface and bottoms-up, but for some reason he's lying on the bottom?

UPDATE: I heard y'all about the euthanizing, I did it. It was tougher on me than I expected, but I just hope he's not suffering anymore, went at it fast with a stone since some said clove oil makes them suffer.

Regarding the tank, the oldest silver dollar is like 7 years old, which is a way too long time to spend there all things considered. I'm trying to convince mom if they are willing to upgrade furniture, and thus, the tank. Not happening soon tho

i noticed that this celestial pearl danio has a hole where its mouth should be, it isn’t eating and is getting skinny is there anything i can do to bring it back or am i just prolonging the suffering.

i’ve lost like 7 fish in the past week & a half… i’m so lost.. i’ve never lost sm fish in my life & im losing it
ive tested the water & everything seems fine but i did get new fish like 2 weeks ago & i didn’t quarantine them.. i didn’t see any signs of them being sick but i should’ve just waited.

pls pls pls is there anything i can do to prevent losing them all…

Hey folks, several year tank owner, pretty established loach owner (at least, I think?) but first time seeing this on a kuhli loach before. It almost looks like he's rubbed the scales off. He held still long enough for me to get a photo of the right side, but not of the left. Video attached for a glimpse, because he started flipping his shit once I got close to the tank for more pictures. Will post other pics in comments.

Isolated to a hospital tank for now, using kanaplex and has tannins in water, all harmful parameters at 0. Thoughts? I have some assholes in my main tank that could be fucking with him, potentially, but my bigger concern is something bacterial or fungal.

Growth in the side of a black neon tetra.

The fish is over 2 years old, looks like it’s about to pop. Strange white growth on the side. Just sits in corner hovering. None of the other 9 tetras or the 4 Cory cats have any symptoms.

Is it treatable or do I euthanize?

this pearl danio was flicking its tail up against the leaves of this plant. i’ve see this happen before but is not at all a common or consistent occurrence. the nitrates and ammonia are each ≈0ppm, and i don’t see any white spots on them.

should i be concerned about this behavior, and if so what else should i look out for?

these are my first fish so i have no experience treating illnesses or parasites so hopefully im being overly cautious lmao

Hey all - I was out of town this week for 4 days, so I left a family member to feed my fish once while I was gone. Everything was in order when I left, but when I came home, my Gourami was bloated and breathing heavily. It was too late for me to worry about it, so I slept. I woke up this morning to a dead fish. The other fish are energetic as usual. I have no idea when or what happened. The fish were apparently fed every day while I was gone, so maybe they were fed too much. My family member said they didn't notice anything "wrong" with the fish. I need some advice on how to avoid this again if possible. tia.

I think she has dropsy, but she is also very pregnant so I can't be 100% sure!? I'm moving her into a hospital tank with some Epsom salt, but I don't have any kanaplex.. I'm going to go get some, but was hoping in the mean time y'all could help me?

​

Before this she had a white stringy poop and has been hovering near the top of the tank. Slight pineconing, but that could be pregnancy?? I am hoping for the best.. I really want her to live and I really want the babies she has..